I got one record with admin.name = "FooBar"
And I want to do a findOne on the name but case insensitive.
In Studio3T this works fine...
db.admin.findOne(
{ name: { $regex: /^FoObAr/i } }
)
But in nodeJS I cant seem to get a variable containing the regexp into the find statement...
Let ID = "FoObAr"
return resolve( adminModel.findOne( { "name" : { $regex: "/^" + ID + "$/i"} } ) );
This one results in... (which gives 0 results)
Mongoose: admin.findOne({ name: { '$regex': '/^FoObAr$/i' } }, { projection: {} })
I also tried
Let ID = "FoObAr"
return resolve( adminModel.findOne( { "name" : { $regex: /^ ID $/i } ) );
This one results in... (which gives 0 results)
Mongoose: admin.findOne({ name: { { $regex: /^ ID $/i } }, { projection: {} })
Any ideas?
Please use RegExp function
admin.find({name:new RegExp(['^',ID, '$'].join(''), 'i')}).projection({})
You should pass RegExp object, not string.
adminModel.findOne({ "name" : { $regex: new RegExp(/^FoObAr/, 'i') } })
With variable ID it will look like
adminModel.findOne({ "name" : { $regex: new RegExp(`^${ID}$`, 'i') } })
Related
I want to make full dynamic search, when user used to type one or two string characters of book in book store UI at search box it should bring all match value from my book table that can be entire my table.
The kind of object that user want to search is not important it should bring all matched values.
const searchObjects = req.query;
const result =await modelbook.find({
//this place is for query that i don't know how I should write
});
res.status(200).json({resultis: result});
})
and book model has these properties
name
price
Url
author
...
You should use $regex.
const search = asyncWrapper(async (req, res) => {
var { value } = req.query;
const result = await modelbook.find({
$or: [
{ name: { $regex: value, $options: "i" } },
{ price: { $eq: Number(value) ? +value : 0 } },
{ url: { $regex: value, $options: "i" } },
{ description: { $regex: value, $options: "i" } },
{ author: { $regex: value, $options: "i" } }
],
});
res.status(200).json({ resultis: result });
})
I am using the $or operator in mongoose for searching through the name and description fields of the database. I want to check if the queryWord string contains any part of the database field(s). This is the code I am using:
const query = {
$or: [
{ name: `/${body.queryWord}/i` },
{ description: { $regex: `/${body.queryWord}/i` } },
],
};
Food.find(query, (err, data) => {
if (err) {
res.status(500).send(err);
} else {
res.status(200).send(data);
}
});
But it returns, only, an empty array!
Any help is greatly appreciated!
Thank You!
I think the problem is because you wrap the regular expression in ``, which is understood as a string. You can try this way:
const queryWordRegex = new RegExp(body.queryWord, "i");
const query = {
$or: [
{ name: { $regex: queryWordRegex } },
{ description: { $regex: queryWordRegex } },
],
};
I have several objects like this:
"status": "published",
"term_id": [
"anime",
"sci-fi",
"etc"
],
"captionCert": "1",
I know that in order to look within a single field, I would create something like this:
if (keyword) {
query.status = { $regex: keyword, $options: 'i' };
}
Where keyword comes from the front end and can be whatever the user types; then I proceed to look into the field status and then I just retrieve it by passing it into my model query:
Video.find(query)
Now hte problem is that I need to know how to exactly do this but inside the term_id array?
Any idea? Thanks.
UPDATE: I'm trying to implement it into this function:
exports.searchVideos = asyncHandler(async (req, res, next) => {
const query = {};
const { keyword } = req.query;
if (keyword) {
query.title = { $regex: keyword, $options: 'i' };
} else {
query.text = { $regex: keyword, $options: 'i' };
}
if (keyword) {
query.term_id = { term_id: { $regex: keyword, $options: 'i' } };
};
const video = await Video.find(query).select(
'title text thumbnail video_url term_id'
);
console.log(query);
res.status(200).json({ success: true, data: video });
});
Solution after finding out about $or operator. This solved my problems!:
exports.searchVideos = asyncHandler(async (req, res, next) => {
let query = {};
const { keyword } = req.query;
query = {
$or: [
{ title: { $regex: keyword, $options: 'i' } },
{ text: { $regex: keyword, $options: 'i' } },
{ term_id: { $regex: keyword, $options: 'i' }}
]
};
const video = await Video.find(query).select(
'title text thumbnail video_url term_id'
);
res.status(200).json({ success: true, data: video });
});
I need to find a user by his mongodb collection's _id ,
in need the search to be done using the first 5 characters in the user id
example with 5e9cca i can find the collection id 5e9cca24beabb96a4caedc35
var id = req.body.id
User.findById({ _id : { $regex: '^id', $options: 'i' } },
(err, user) => {
if (err) {
console.log(err);
res.status(400)
}
with this code i got this error :
MongooseError [CastError]: Cast to ObjectId failed for value "{ _id: { '$regex': '^id', '$options': 'i' } }" at path "_id" for model "User"
PS : The search using the hole id is working
Mongoose's .findById() will take in a string & internally it will convert string into ObjectId(). So .findById() is kind of a wrapper to MongoDB's native function .findOne() and all it can take is a string. Additionally you can not do regex search on _id field as it's not of type string. If at all you need to do this, try below :
On MongoDB version >4.0 :
db.collection.aggregate([
/** Create a field of type 'string' from `_id`*/
{ $addFields: { convertedId: { $toString: "$_id" } } },
/** Regex search against it */
{
$match: {
convertedId: {
$regex: "^1a934e",
$options: "i"
}
}
},
/** Remove additionally added field */
{ $project: { convertedId: 0 } }
])
Test : mongoplayground
I am passing blank('') value in search parameter, it display no record. I want, when i pass null or blank value it ignore that parameter from search query, and display record. My code is
var _branchName = req.query.branchName;
var _personName = req.query.personName;
var _clientID = req.query.clientID;
var _searchQRY = [
{
branchName: { $regex: _branchName, $options: '-i' }
},
{
personName: { $regex: _personName, $options: '-i' }
},
{
"client._id": _clientID
},
{
isDeleted: { $ne: true }
}];
objModel.find({ $and: _searchQRY }, function (err, results) {
res.json({ status: config.responseStatus, record: results })
});
In this i pass "_clientID" is blank(''). At that time i want to ignore that parameter and search on remains parameter.
You can do smth like
var _branchName = req.query.branchName;
var _personName = req.query.personName;
var _clientID = req.query.clientID;
var _searchQRY = [
{
branchName: { $regex: _branchName, $options: '-i' }
},
{
personName: { $regex: _personName, $options: '-i' }
},
{
isDeleted: { $ne: true }
}];
if (_clientID) {
_searchQRY.push(
{
"client._id": _clientID
}
);
}
objModel.find({ $and: _searchQRY }, function (err, results) {
res.json({ status: config.responseStatus, record: results })
});
I.e. include client._id in the search query only when you do specify it in the request.
What you can do is, when _clientID is blank, change its value to object like this
if (_clientID == '')
_clientID = { $exists : true};
This will match all the client._id when _clientID is empty string ''